Work around circular dep between Icon and Palette. I don't

like it though, we should get rid of the dep.
Fix palette bug which I introduced with the pylint changes.

sugar/graphics/icon.py

@@ -25,7 +25,6 @@ import hippo
 import cairo
 
 from sugar.graphics.xocolor import XoColor
-from sugar.graphics.palette import Palette, CanvasInvoker
 from sugar.util import LRU
 
 _BADGE_SIZE = 0.45
@@ -533,6 +532,8 @@ class CanvasIcon(hippo.CanvasBox, hippo.CanvasItem):
         return self._palette
     
     def set_palette(self, palette):
+        from sugar.graphics.palette import CanvasInvoker
+
         if self._palette is not None:        
             self._palette.props.invoker = None
         self._palette = palette
@@ -540,6 +541,8 @@ class CanvasIcon(hippo.CanvasBox, hippo.CanvasItem):
             self._palette.props.invoker = CanvasInvoker(self)
 
     def set_tooltip(self, text):
+        from sugar.graphics.palette import Palette
+
         self.set_palette(Palette(text))
     
     palette = property(get_palette, set_palette)

sugar/graphics/palette.py

@@ -98,7 +98,7 @@ class MouseSpeedDetector(gobject.GObject):
 
     def _get_mouse_position(self):
         display = gtk.gdk.display_get_default()
-        return display.get_pointer()[1:2]
+        return display.get_pointer()[1:3]
 
     def _detect_motion(self):
         oldx, oldy = self._mouse_pos
@@ -737,7 +737,7 @@ class Invoker(gobject.GObject):
 
         if self._cursor_x == -1 or self._cursor_y == -1:
             display = gtk.gdk.display_get_default()
-            x, y = display.get_pointer()[1:2]
+            x, y = display.get_pointer()[1:3]
             self._cursor_x = x
             self._cursor_y = y